Roller spring-tooth harrow and cultivator



3 Sheets-Sheet 1.

R. W. & A. w. DAVIS.

ROLLER SPRING TOOTH'HARROW AND GULTIVATOB.

(No Model.)

Patented Oct. 27, 1885.

N. PETER PMWLMIugmpMr, Wahinpon. D.C.

3 Sheets-Sheet- .(No Model.)

,R. w. & A. WqDAVIS. I ROLLER SPRING TOOTH HARROW AND" GULTIVAT-OR. N0.329,371.

N. PEI'ERs Phqwulhographlr. Wmmo. ac.

- I 7 3 Sheets-Sheet 3. R. W. & A.'W-.D A VIS. I

ROLLER SPRING TOOTH HARBOWAND GULTIVATOR. No. 329,371. Patented Oct. 27,1885. I

(No Model.) v

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UNITED, STAT-Es;

PATENT OF I E.

ROBERT W. DAVIS AND ARTHUR W. DAVIS, OF ELMIRA, ASSIGNORS TO SIDNEYSWEET, OF D A'NSVILLE, NEW YORK.

ROLLER SPRING-TOOTH HARROW AND CULT IVATOR.

SPECIFICATION forming part of Letters Patent No. 329,3'71fdated October2'7, 1885.

I Application filed October 7, 1884. Serial No.144,903. (No model.)

tors, of which the following, taken in connection with the accompanyingdrawings,is a full,

clear,and exact description.

This invention consists, first, of a harrow composed of separate anddistinct frames detachably connected, and each equipped withoperating-teeth arranged in such a manner that by disconnecting theframes from each other and connecting suitable handles to the detachedframes the barrow is converted into convenient and efficientcultivators; and the invention further consists in certain peculiaritiesin the details of the apparatus, all as hereinafter more fullydescribed, and specifi- ,cally set forth in the claims.

The invention is fully illustrated in the accompanying drawings, whereinFigure I is a side elevation of our improved roller spring tooth harrowand cultivator combined. Fig. II is aplan view of thesame. Fig. III is arear end view. Fig. IV is a vertical transverse section onlinem as, Fig.II. Fig. V is an enlarged: top view of the attachment of the springtooth to the frame. Fig. VI is a vertical sec tion of the same throughthe center thereof. Fig. VII is an enlarged side elevation of thespring-tooth and its attachment to the frame. Fig. VIII is an enlargedsectional view of the attachment of the rollers to the frame; and Fig.IX is an enlarged transverse section of the spring-tooth, taken throughthe center of the attachment of the operating-point on line y y,FigLVII.

Similar letters of reference indicate corre sponding parts.

nal beams A A, connected to the central portions of the aforesaidcross-bars. The rearcross-bar of the said frame forms lateral "theframe.

extensions A A, to the ends of which the rear frames A A, arerespectively detachably connected. These rear frames are each composedof a long cross-bar, a shorter cross-bar at the rear, a still shortercross-bar at the front, and longitudinal beams A A", connected to thecentral portions of the aforesaid cross-bars. Each of said frames isequipped with a set of spring-teeth, D I), the teeth of the forwardframe being arranged in the following order, to wit: To each cndof theforward and shortest cross-bars is attached one of the teeth D,equidistant from the center of To the ends of the intermediate cross-baris attached another set of teeth, arranged a sufficient distance outwardfrom the track of the forward teeth to leave between them an undisturbedstrip of land for the carrying-wheels B B of the barrow to travel on.One tooth is attached to the center of the rear and long cross-bar, andthus cultivates tooth is attached to the center of the rear cross-bar,and two teeth on the same bar arranged outside of the track of the teethof the .forward and shortest crossbar, respectively at opposite sides ofthe center thereof, one

forward cross-bar, and two more teeth are attached to the intermediatecross-bar and arranged outside of the outer teeth of the rear crossbar.Thus each frame carries a complete set of teeth, occupying one-third ofthe Width of the entire harrow. The rear frames,

being narrow, can, when detached from each other and from the forwardframe, be used as two cultivators by attaching thereto suitable handles,which may be of any well-known form and attached in any ordinary andwellknown manner, and therefore need no illustration in this case. Eachof the aforesaid frames is supported independent of the others by a setof carrying wheels or rollers, B B, which are arranged inside of thetrack of the outer teeth D and directly in front of two of the innerteeth, thereby bringing the said rollers sufficiently near the centertoallow the harrow to rock laterally and conform to the unevenness of theground, and also harrowing said bolt being provided with a nut by whichto clamp the hangers H H on the beams of the frame, as illustrated inFigs. 1V and VIII of the drawings. By loosening the nut of the bolt 6the hangers H H can be raised or lowered, and thus the rollers B B canbe adjusted to allow the teeth to enter the ground the desired depth,and in this adjusted position the rollers are retained by tightening theaforesaid nut of the bolt 6. The aforesaid rollers B B are ofsuchdiameters as to cause them to project above all parts of the harrow,thereby making said rollers support the harrow when turned upside down,and thus facilitating the moving of the harrow to and from the field.

The teeth D we prefer to construct of two separate and distinctspring-steel bars or heavy wires, each of which is formed into avertical coil', 0, terminating at one end with an arm, I), whichprojects tangentially from the lower portion of the coil and constitutesone of the attaching-shanks of the tooth. From the opposite end of thecoiled portion 0 the springbar is curved into an eccentrically-prolongedarm, which extends rearward above the frame, thence downward and forwardand terminates below the frame. said two spring-bars being curved alike,so as to run parallel with each other, and to their lower ends isattached the operating-point E, which consists of a vertically-elongatedconcavo-convex steel plate, pointed at opposite ends, so as to admit ofre versing the plate end for end when one end isworn out. Said plate isdetachably connected to the two springbars of the tooth D by laying thepoint E with its concave side on the front of the two spring-bars andapplying against the back of said spring-bars a washer,

f, which is provided with vertical grooves 7'1, in which the ends of thespring-bars lie. A bolt, 9, passes through the point E and through thewasher f, between the two springbars, and is provided with a nut, to, bywhich said parts are clamped together, as shown in Fig. IX of thedrawings. The two attachingshanks b b of the two spring-bars are securedto the under side of the bar of the harrowframe by means of aclamping-plate, h, placed across said arms, and provided with grooves t,in which the shanks b blie. A washer or stay-plate, k, is placed on theupper side of thenframe and fastened thereto by a bolt, Z,

passing through the plates 72 and k and intervening frame-beam, andprovided with a nut, as shown in Fig. VI of the drawings. The plate Itis provided with recesses or ways at m, through which thecoils ,c c ofthe teeth D pass. The bearings of the coils in said recesses serve tosustainthe coils in their vertical position, and thus brace the tooth tosome extent laterally A harrow-tooth formed of two springmetal bars,vwhich render the seat: support elastic, and rest with their feet on thecentral portions of the .three frames A A A, as shown by full lines inFigs. I and III of the drawings and by dotted lines in Fig. II of thedrawings. The weight of the driver is thus distributed over the threeframes. ever it is desired to use the two reir frames or sections, A A,of the harrow for oultivators, the seat S is to be removed, and the twosections A A are to be uncoupled from each other and from the forwardframe, .A, and suitable handles are to be connected with the respectivesections or frames A A. The coupling device between the forward and rearframes, A A, can be used for attachment of the whiffletree to the rearframes. The seatsupporting braces T T T are detachably connected to theharrow-frame, so that when the harrow is to be turned over onto its backthe seat, with its braces, can be removed and subsequently secured tothe inverted harrow, to allow the driver to ride to and from the field.

\Ve are aware that land-rollers have been connected with a harrow-framein such a man-. ner as to project above said frame, and thus allow theapparatus to be used either as a harrow and land-roller combined, orsimply as a land-roller by turning it over; but it is obvious that theturning over of such a device is a very difficult operation, owing tothe great length and weight of the rollers. In our improved harrow therollers are simply carrying-wheels having a comparatively narrow tread,and arranged near thelongitudinal central line of the frame, andtherefore allow the harrow to freely rock laterally and to be easilyturned over when desired.

Having described our invention, what we claim as new, and desire tosecure by Letters Patent, is-

l. A hammer composed of separate and VVhen- IIO distinct framesdetachably connected, and

each provided with a set of teeth and supported independently of theother by rollers connected with-said frame, substantially as set forthand shown.

2. A roller-harrow composed of three separate and distinct frames, eachequipped with a set of spring-teeth, one of said frames being arrangedin advance of the others and provided at opposite sides with lateralextensions, the two rear frames being detachably connected to saidextensions,carrying-rollers connected with the respective frames,and thedriver s seat supported on braces resting with their feet respectivelyon the three frames, substantially as described.

3. The combinationof the barrow-frame composed of cross-bars andlongitudinal bars attached to the central portion of said crossbars, anaxle secured across the longitudinal bars, carrying-rollers on saidaxle, teeth at tached to the forward cross-bars at points in side andoutside of the line of travel of the rollers, a tooth attached to therear cross-bar central between the tracks of the rollers, and teethattached to said crossbar in range with the track of the rollers,substantially as described and shown.

4.. The harrow composed of a long crossbar, a shorter cross-bar at therear, a still shorter cross-bar in front, longitudinal beams connectedto the central portions of the cross-bars,

- two teeth attached to the front cross-bar respectively at oppositesides of the center thereof, a tooth attached to the center of the rearcross-bar, and two teeth on the same bar arranged outside of the teethof the forward crossbar, and two teeth on the intermediate crossbararranged outside of the outer teeth of the rear crossbar, substantiallyas described and shown.

5. The combination of the harrow -frame composed of three separate anddistinct frames, each'ie'quipped with a set of spring-teeth, one of saidframes being arranged in advance of the 1 others and provided atopposite sides with lateral extensions, the two rear frames beingdetachably connected to said extensfons,carryingrollers connected withthe respective frames, and the drivers seat supported on braces restingwith their feet respectively on the three frames, and an axle extendedacross the longitudinal bars between the central and rear cross-bars,and rollers on said axle in front of and in range with the outer teethof the rear cross-bar, substantially as described.

6. The forward harrow-frame, composed of a long rear crossbar, a shortercrossbar 'in front of it, a still shorter cross-bar in front of ends ofeach of the two front cross-bars, one tooth in the center of the rearcrossbar, and two teeth on the latter at opposite sides of the centerand in line with the center of the space between the tracks of theforward teeth, in combination with harrows at the rear of and detachabiyhung on the ends of the rear cross bar of the forward harrow,substantially as described and shown.

7. A harrow composed of separate and distinct frames detachablyconnected, and each provided with a set of teeth and supportedindependently of the others by rollers connected with the frames, and adrivers seat supported by braces resting with their feet centrally onthe respective frames, substantially as set forth. 1

In testimony whereof we have hereunto signed our names and affixed ourseals,in the presence of two attesting witnesses, at Elmira, in thecounty of Ghemung, in the State of New York.

ROBERT W. DAVIS. [L. s.] ARTHUR W. DAVIS. [L. s.]

Witnesses:

JAMES R. REID, OHAs. G. LAPPE.

the latter, longitudinal bars connected to the central portion of thecross-bars, teeth on the.

ection in Letters Patent No. 329,371.,

It is hereby certified that in Letters Patent No. 329,371, grantedOctober 27, 1885, upon the application of Robert W. Davis and Arthur W.Davis, of Elmira, New York, for an improvement in Roller Spring-ToothBarrows and Cultivators, an error appears in the printed specificationrequiring correction as follows: In line 131, page 2, the

l word hammer should be stricken out and the word harrow insertedinstead; and that the said Letters Patent should be read with thiscorrection therein that the same may eonform to the record of the casein the Patent Oflice.

Signed, conntersigned, and sealed this 3d day of November, A. D. 1885.

H. L. MULDROW, Acting Secretary of the Interior.

[SEAL] Uonntersignedr M. V. MONTGOMERY Commissioner of Patents.

